Lock.



C. A. BERRY.

LOCK.

APPLICATION FILED JUNE 10, 1909.

Patented May 24, 1910.

2 SHEETS-SHEET 1.

' WTNESSES [NI/ENTOR d. A. BERRY.

LOCK. APPLIOATION FILED JUNI: 1o, 1909.

Patented May 24, 1910.

2 SHEETS -SHEBT 2.

@gd/V Allume] GHARLES A. nanny, or-s'rmro N STATES PATENT OFFICE.

Rn, coNNnc'rIcUT, AssIGNon To THE YALE a TowNE MANUFACTURING COMPANY, 0FSTAIFORD, CONNECTICUT.

- LOCK.

To all whom tima/y Be it known-that I, CHARLES A. BERRY, of Stamford, inthe county of Fairfield and State of Connecticut, have invented certainnew and useful Improvements in Locks; and I do4 hereby declare thelfollowing to be a full, clear, and exact description of the in'-vention, such as will enable others skilled inI the art to which itappertains to make and use the same.

My Vinvention relates to improvements in locks designed particularly foruse on doors between rooms.

For hotel and similar uses it is desirable to have a lock so arrangedthat adjoining rooms may be used en suite or as separate rooms and theobject of theinventionisto provide a lock which may be used as anordinary knob latch, with means operable from each vside of the doorwhereby it may he locked from either side. j

A A further object is to provide means whereby the llocking means can bedead locked either in thelr operative or inoperative' position. i

With these and other ends in view my invention consists in the parts andcombina- `tions of-parts as will be more fully explained and pointed outin the claims.-

In the accompanying drawings, Figure 1 is a view in elevation of myimproved lock, the cover plate being removed.h Fig. 2 is a view insection on line m as of Fig. 1. Fig. 3 is al view'in section on the liney--y 0f Fig. 1; and Fig. 4 isa view on the l-ine z-z of Fig. 1. v

'In the drawings, I have lshown the lock composed of an inside plate `1an outside plate 2 and an inner case 3 containing the lock mechanism. y

The knobs 4 are mounted in the plates 1 and 2, and each knob isconnected to and 'actuates a hub or roll back', which latter. in turnenga es theturnedends 6 of the tail iece 7. his tail piece is connectedvby the ink 8 with the latch bolt 9,' and is operated bythe hubs or rollbacks to retractthelatc'h bolt 9, the latter being yieldingly held initsa projected position by the spring 10.

` plane of the turned end or stop l' would `have it understood howeverthat my improvements to -be hereinafter described are applicable toother types of locks hence I do not confine the use ofthe inven- 'tionto the type of lock shown, and above described.

Mounted in the lock case 3 above and below the latch bolt 9, are thebolts 11, each of .which is actuated by a cam hub 12 mounted in theloc'k case, one on each sideV 'of the door, as shownin Fig. 3.V Each camhub is rotated by a thumb piece 13, one of which s mounted in the outerplate 1 and the other in the inner plate 2, and each thumb piece isprovided wlth an angular -shank 14, which fits within the angularopening 16 in its respective cam hub 12. The cam 12a of each cam hub'12,vrests within a recess 17 in its bolt, the end walls of the recess, at18 being cut away as shown, so as to form seats for the ends of the cams12a, both when the bolts are projected and also when they are reitracted, thus deadlocking the bolts in their two positions.

Each cam hub 12 is yieldingly held, its two. positions, as shown in Fig.l',

b a spring 19 secured to the post 20 on its bolt 11, and bearing at -itsfree end against the shoulder 21 formed integral with the hb 12. Thesesprings prevent any accidental rotation of the hubs, and operate to holdthe cams against their seats 18, thus deadlocking the bolt in its twopositions.

Each bolt 11 is provided withan inwardly projecting lug 22, locatedbehind and in the 23 of .plate 24 secured to the latchl tail piece7.When either bolt 11 is projected, its lug 22 rests close up to, and inthe path of the stop 23 carried' by. the tail piece, and prevents thelatch bolt from being retracted by. either.

knob.

A v Specification of Letters Patent. i Patented 'May 24,191.0,`Application ma June 10,1999. serial No. 501,418.

Loosely mounted on the rear end of lock' case 3 is the sliding plate 24aprovided with the forwardly projecting arms 25 terminating in bent ends26 which form deadlocking abutments.

These deadlocking abutments4 are adapted to be moved into thev` path ofmovement behind both bolts, when the latter are projected and thusdeadlock thelatthe knob cylinder 28, connecting bar 29 and hub 30. Thishub is provided with a cam 31 which is moved by the turnin of the hub 30into position between the s oulders 32 formed by slotting the slidingplate 24a. With the parts in the posit-ion shown in Fig. 1. one bolt islocked in its projected position and the other in its retractedposition, and the cam 31 is shown (in dotted lines) in a position toengage the upper shoulder :52 of plate, 24. By continuing the movementof the cam, by the key as above explained, the plate 24 will be movedupwardly thus carrying its abutments 26 up into a plane above the bolts,thus freeing the latter and permitting either bolt lto be actuated byits thumb piece. By now turning the cam 31 in the opposite direction,the sliding plate will be moved to its position to deadlock one or bothbolts.

The sliding plate is held in its two positions by the bend in spring 33engaging recesses 34 in one edge of sli ing plate 24.

IVith this lock both dead bolts may be left free to be actuated by thethumb pieces; or they may be deadlocked in the retracted position thusconverting the lock into an ordinary knob latch, or they or either ofthem may be deadlocked in their projected positions by the key thuspreventing the door from being opened except by the use of the properkey.

It is evident that many slight changes might be resorted to in therelative arrangement of parts shown and described without departing fromthe spirit and scope of my invention hence I would have it understoodthat I do not wish to confine myself to the exact construction andarrangement of parts shown and described, but,

Having fully described my invention what I claim as new and desire ,tosecure by Letters-Patent, is:-

1. In a lock, the combination with a latch bolt and knob mechanism foractuating same,

of a dead bolt, a cam for moving the dead bolt to its two positions andfor deadlocking it in each position, means for turning the cam, andcooperating projecting members on the dead bolt and latch mechanism,whereby when the dead bolt is projected, the knob mechanism of the latchwill be deadlocked.

Fig. 1, I have shown one dead bolt` :amacay i 2. `In a lock, thecombination with a latch bolt, and knob mechanism for actuating same, oftwo dead bolts, independent means for moving each dead bolt to its twopositions and for deadlocking it in each position and cooperatingprojecting members on the latch mechanism and both dead bolts, wherebywhen either bolt is projected the knob mechanism of the latch will bedeadlocked.

. 3. In a lock, the combination with a latch bolt and knob mechanism foractuating same, of two dead bolts, independent means for actuating thebolts, coperating projecting members on the latch mechanism and bothbolts whereby when either bolt is projected the knob mechanism of thelatch will be deadlocked, and a single mechanism actuated by a key fordeadlocking both bolts.

4. In a lock, the combination with latch mechanism,-of a dead bolt,means for actuating same, co rating means on the latch mechanism anbolt, whereby when the bolt is projected, the latch mechanism will bedeadlocked, and key actuated mechanism carried by the lock casing fordeadlocking the bolt in its two positions.

5. In a lock, the combination with latch mechanism, of two dead bolts,means for independently actuating the bolts, coperating means on thelatch mechanism and both bolts whereby when either bolt is projected thelatch mechanism will be deadlocked, and a single mechanism actuated by akey for deadlocking both bolts irrespective of their positions.

6. The combination with latch mechanism, of a dead bolt, means foractuating same, coperating projecting members on the latch mechanism anddead bolt whereby when the bolt is projected the latch mechanism will bedeadlocked, and key actuated mechanism adapted t'o engage said dead boltin advance of its rear end for locking same in its retracted positionand also adapted to engage the bolt in rear of said first mentionedpoint of engagement for locking the bolt in its projected position.

7. The combination with latch mechanism, of a bolt, a cam actuated by athumb piece for shifting said bolt, the said cam also acting as a deadlock for the bolt, a spring for yieldingly holding the cam in its twopositions, and a key actuated device directly engaging the bolt fordeadlocking it in its two positions.

8. The combination with latch mechanism, of two bolts, cams actuated bythumb pieces for shifting the bolts, and a key actuated deadlockingdevice adapted to be shifted to directly engage and 'deadlock bothbolts, either in their projected or their retracted positions.

9. In a lock, the combination with a latch l bolt and knob mechanism forsame, of a bolt,

a cam for moving said bolt to its two posispeciiication in thepresenoeof two subscrib' ions, coperating projecting memberlon the ingwitnesses.

olt and latch mechanism whereby w en the l r l bolt is projected theknobmechanism will be l CHARLES A' BERRX 5- deadlocked and key actuatedmechanism for Witnesses:

deadlocking the bolt. WARREN H. TAYLOR,

In testimony whereof, I have signed this ELLIS H. JONES.

